Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Elizabeth A Phelps, NP

General Practice Physician in Antioch, CA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1801970405

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Registry record

Entity type Individual (Type 1)

Name Ms. Elizabeth A Phelps

Credential NP

Sex Female

Practice address 4501 Sand Creek Rd, Employee Health 3rd Fl, Antioch, CA, 94531

Phone (925) 813-6468

Enumeration date Oct 24, 2006

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician Allopathic & Osteopathic Physicians · License 428964 (CA) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 428964 (CA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Elizabeth Phelps practice?

The practice location on file with NPPES is in Antioch, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Elizabeth Phelps?

The National Provider Identifier (NPI) for Elizabeth Phelps is 1801970405, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.